/*
 * Copyright (c) 2002 and later by MH Software-Entwicklung. All Rights Reserved.
 *  
 * JTattoo is multiple licensed. If your are an open source developer you can use
 * it under the terms and conditions of the GNU General Public License version 2.0
 * or later as published by the Free Software Foundation.
 *  
 * see: gpl-2.0.txt
 * 
 * If you pay for a license you will become a registered user who could use the
 * software under the terms and conditions of the GNU Lesser General Public License
 * version 2.0 or later with classpath exception as published by the Free Software
 * Foundation.
 * 
 * see: lgpl-2.0.txt
 * see: classpath-exception.txt
 * 
 * Registered users could also use JTattoo under the terms and conditions of the 
 * Apache License, Version 2.0 as published by the Apache Software Foundation.
 *  
 * see: APACHE-LICENSE-2.0.txt
 */

package com.jtattoo.plaf.acryl;

import com.jtattoo.plaf.*;
import java.awt.*;
import java.awt.geom.Area;
import java.awt.geom.Ellipse2D;
import javax.swing.*;
import javax.swing.plaf.ColorUIResource;

/**
 * @author Michael Hagen
 */
public class AcrylIcons extends BaseIcons {

  public static Icon getIconIcon() {
    if (iconIcon == null) {
      if (AbstractLookAndFeel.getTheme().isMacStyleWindowDecorationOn()) {
        iconIcon = new MacIconIcon();
      } else {
        iconIcon = new TitleButtonIcon(TitleButtonIcon.ICON_ICON_TYP);
      }
    }
    return iconIcon;
  }

  public static Icon getMinIcon() {
    if (minIcon == null) {
      if (AbstractLookAndFeel.getTheme().isMacStyleWindowDecorationOn()) {
        minIcon = new MacMinIcon();
      } else {
        minIcon = new TitleButtonIcon(TitleButtonIcon.MIN_ICON_TYP);
      }
    }
    return minIcon;
  }

  public static Icon getMaxIcon() {
    if (maxIcon == null) {
      if (AbstractLookAndFeel.getTheme().isMacStyleWindowDecorationOn()) {
        maxIcon = new MacMaxIcon();
      } else {
        maxIcon = new TitleButtonIcon(TitleButtonIcon.MAX_ICON_TYP);
      }
    }
    return maxIcon;
  }

  public static Icon getCloseIcon() {
    if (closeIcon == null) {
      if (AbstractLookAndFeel.getTheme().isMacStyleWindowDecorationOn()) {
        closeIcon = new MacCloseIcon();
      } else {
        closeIcon = new TitleButtonIcon(TitleButtonIcon.CLOSE_ICON_TYP);
      }
    }
    return closeIcon;
  }

  public static Icon getTreeControlIcon(boolean isCollapsed) {
    if (!AbstractLookAndFeel.getControlColorLight().equals(
        new ColorUIResource(96, 98, 100))) {
      return BaseIcons.getTreeControlIcon(isCollapsed);
    }

    if (isCollapsed) {
      if (treeClosedIcon == null) {
        treeClosedIcon = new LazyImageIcon(
            "acryl/icons/TreeClosedButton.gif");
      }
      return treeClosedIcon;
    } else {
      if (treeOpenIcon == null) {
        treeOpenIcon = new LazyImageIcon(
            "acryl/icons/TreeOpenButton.gif");
      }
      return treeOpenIcon;
    }
  }

  public static Icon getRadioButtonIcon() {
    if (radioButtonIcon == null) {
      radioButtonIcon = new RadioButtonIcon();
    }
    return radioButtonIcon;
  }

  public static Icon getCheckBoxIcon() {
    if (checkBoxIcon == null) {
      checkBoxIcon = new CheckBoxIcon();
    }
    return checkBoxIcon;
  }

  public static Icon getThumbHorIcon() {
    if (!AbstractLookAndFeel.getControlColorLight().equals(
        new ColorUIResource(96, 98, 100))) {
      return BaseIcons.getThumbHorIcon();
    }

    if (thumbHorIcon == null) {
      thumbHorIcon = new LazyImageIcon("acryl/icons/thumb_hor.gif");
    }
    return thumbHorIcon;
  }

  public static Icon getThumbVerIcon() {
    if (!AbstractLookAndFeel.getControlColorLight().equals(
        new ColorUIResource(96, 98, 100))) {
      return BaseIcons.getThumbVerIcon();
    }

    if (thumbVerIcon == null) {
      thumbVerIcon = new LazyImageIcon("acryl/icons/thumb_ver.gif");
    }
    return thumbVerIcon;
  }

  public static Icon getThumbHorIconRollover() {
    if (!AbstractLookAndFeel.getControlColorLight().equals(
        new ColorUIResource(96, 98, 100))) {
      return BaseIcons.getThumbHorIconRollover();
    }

    if (thumbHorIconRollover == null) {
      thumbHorIconRollover = new LazyImageIcon(
          "acryl/icons/thumb_hor_rollover.gif");
    }
    return thumbHorIconRollover;
  }

  public static Icon getThumbVerIconRollover() {
    if (!AbstractLookAndFeel.getControlColorLight().equals(
        new ColorUIResource(96, 98, 100))) {
      return BaseIcons.getThumbVerIconRollover();
    }

    if (thumbVerIconRollover == null) {
      thumbVerIconRollover = new LazyImageIcon(
          "acryl/icons/thumb_ver_rollover.gif");
    }
    return thumbVerIconRollover;
  }

  // ------------------------------------------------------------------------------
  private static class TitleButtonIcon implements Icon {

    private static Color extraLightGray = new Color(240, 240, 240);
    private static Color closerColorLight = new Color(241, 172, 154);
    private static Color closerColorDark = new Color(224, 56, 2);
    public static final int ICON_ICON_TYP = 0;
    public static final int MIN_ICON_TYP = 1;
    public static final int MAX_ICON_TYP = 2;
    public static final int CLOSE_ICON_TYP = 3;
    private int iconTyp = ICON_ICON_TYP;

    public TitleButtonIcon(int typ) {
      iconTyp = typ;
    }

    public int getIconHeight() {
      return 20;
    }

    public int getIconWidth() {
      return 20;
    }

    public void paintIcon(Component c, Graphics g, int x, int y) {
      int w = c.getWidth();
      int h = c.getHeight();

      JButton b = (JButton) c;
      Graphics2D g2D = (Graphics2D) g;

      boolean isPressed = b.getModel().isPressed();
      boolean isArmed = b.getModel().isArmed();
      boolean isRollover = b.getModel().isRollover();

      Color cFrame = AbstractLookAndFeel.getTheme()
          .getWindowBorderColor();
      Color cFrameInner = ColorHelper.brighter(cFrame, 60);
      Color cHi = ColorHelper.brighter(AbstractLookAndFeel.getTheme()
          .getWindowTitleColorLight(), 40);
      Color cLo = ColorHelper.darker(AbstractLookAndFeel.getTheme()
          .getWindowTitleColorDark(), 10);
      Color cShadow = Color.black;
      if (iconTyp == CLOSE_ICON_TYP) {
        cHi = closerColorLight;
        cLo = closerColorDark;
      }

      if (isPressed && isArmed) {
        Color cTemp = ColorHelper.darker(cLo, 10);
        cLo = ColorHelper.darker(cHi, 10);
        cHi = cTemp;
        g2D.setPaint(new GradientPaint(0, 0, cHi, w, h, cLo));
        g.fillRect(2, 2, w - 3, h - 3);
      } else if (isRollover) {
        cFrameInner = ColorHelper.brighter(cFrameInner, 50);
        if (iconTyp == CLOSE_ICON_TYP) {
          cHi = closerColorLight;
          cLo = closerColorDark;
          cShadow = cLo;
          g2D.setPaint(new GradientPaint(0, 0, cHi, w, h, cLo));
          g2D.fillRect(2, 2, w - 3, h - 3);
        } else {
          JTattooUtilities
              .fillHorGradient(g2D, AbstractLookAndFeel
                  .getTheme().getRolloverColors(), 2, 2,
                  w - 3, h - 3);
        }
      }

      g2D.setColor(cFrame);
      g2D.drawLine(1, 0, w - 2, 0);
      g2D.drawLine(1, h - 1, w - 2, h - 1);
      g2D.drawLine(0, 1, 0, h - 2);
      g2D.drawLine(w - 1, 1, w - 1, h - 2);

      g2D.setColor(cFrameInner);
      g2D.drawRect(1, 1, w - 3, h - 3);

      Icon icon = null;
      if (iconTyp == ICON_ICON_TYP) {
        icon = new BaseIcons.IconSymbol(extraLightGray, cShadow, null,
            new Insets(0, 5, 0, 5));
      } else if (iconTyp == MIN_ICON_TYP) {
        icon = new BaseIcons.MinSymbol(extraLightGray, cShadow, null,
            new Insets(0, 4, 0, 4));
      } else if (iconTyp == MAX_ICON_TYP) {
        icon = new BaseIcons.MaxSymbol(extraLightGray, cShadow, null,
            new Insets(0, 4, 0, 4));
      } else if (iconTyp == CLOSE_ICON_TYP) {
        icon = new BaseIcons.CloseSymbol(Color.white,
            ColorHelper.darker(cShadow, 50), null, new Insets(0, 5,
                0, 5));
      }
      if (icon != null) {
        icon.paintIcon(c, g, 0, 0);
      }
    }
  }

  // -----------------------------------------------------------------------------------------------------------
  private static class CheckBoxIcon implements Icon {

    private static Icon checkIcon = new LazyImageIcon(
        "acryl/icons/CheckSymbol.gif");
    private static Icon checkPressedIcon = new LazyImageIcon(
        "acryl/icons/CheckPressedSymbol.gif");
    private static Icon checkInactiveIcon = new LazyImageIcon(
        "icons/CheckSymbol.gif");
    private static Icon checkDisabledIcon = new LazyImageIcon(
        "icons/CheckSymbolDisabled.gif");

    private static final int WIDTH = 14;
    private static final int HEIGHT = 14;

    public void paintIcon(Component c, Graphics g, int x, int y) {
      if (!JTattooUtilities.isLeftToRight(c)) {
        x += 3;
      }
      AbstractButton b = (AbstractButton) c;
      ButtonModel model = b.getModel();
      Color frameColor = AbstractLookAndFeel.getFrameColor();

      if (b.isEnabled()) {
        if (b.isRolloverEnabled() && model.isRollover()) {
          JTattooUtilities.fillHorGradient(g, AbstractLookAndFeel
              .getTheme().getRolloverColors(), x + 1, y + 1,
              WIDTH - 2, HEIGHT - 2);
          frameColor = ColorHelper.brighter(frameColor, 30);
        } else {
          JTattooUtilities.fillHorGradient(g, AbstractLookAndFeel
              .getTheme().getDefaultColors(), x + 1, y + 1,
              WIDTH - 2, HEIGHT - 2);
        }

      } else {
        JTattooUtilities.fillHorGradient(g, AbstractLookAndFeel
            .getTheme().getDisabledColors(), x + 1, y + 1,
            WIDTH - 2, HEIGHT - 2);
        frameColor = ColorHelper.brighter(frameColor, 40);
      }

      g.setColor(AbstractLookAndFeel.getTheme().getControlShadowColor());
      g.drawRect(x, y, WIDTH - 1, HEIGHT - 1);
      g.setColor(frameColor);
      g.drawLine(x + 1, y, x + WIDTH - 2, y);
      g.drawLine(x + 1, y + HEIGHT - 1, x + WIDTH - 2, y + HEIGHT - 1);
      g.drawLine(x, y + 1, x, y + HEIGHT - 2);
      g.drawLine(x + WIDTH - 1, y + 1, x + WIDTH - 1, y + HEIGHT - 2);
      g.setColor(AbstractLookAndFeel.getTheme().getControlShadowColor());
      g.drawLine(x + WIDTH, y + 2, x + WIDTH, y + HEIGHT - 1);
      g.drawLine(x + 2, y + HEIGHT, x + WIDTH - 1, y + HEIGHT);

      int xi = x + ((WIDTH - checkInactiveIcon.getIconWidth()) / 2) - 1;
      int yi = y + ((HEIGHT - checkInactiveIcon.getIconHeight()) / 2) - 1;
      if (model.isPressed() && model.isArmed()) {
        checkPressedIcon.paintIcon(c, g, xi + 1, yi + 1);
      } else if (model.isSelected()) {
        if (!model.isEnabled()) {
          checkDisabledIcon.paintIcon(c, g, xi + 1, yi + 1);
        } else {
          int gv = 0;
          if (model.isRollover()) {
            gv = ColorHelper.getGrayValue(AbstractLookAndFeel
                .getTheme().getRolloverColorDark());
          } else {
            gv = ColorHelper.getGrayValue(AbstractLookAndFeel
                .getTheme().getControlColorDark());
          }
          if (gv > 128) {
            checkInactiveIcon.paintIcon(c, g, xi + 1, yi + 1);
          } else {
            checkIcon.paintIcon(c, g, xi, yi);
          }
        }
      }
    }

    public int getIconWidth() {
      return WIDTH + 4;
    }

    public int getIconHeight() {
      return HEIGHT;
    }
  }

  // -----------------------------------------------------------------------------------------------------------
  private static class RadioButtonIcon implements Icon {

    private static Icon radioIcon = new LazyImageIcon(
        "acryl/icons/RadioSymbol.gif");
    private static final int WIDTH = 13;
    private static final int HEIGHT = 13;

    public void paintIcon(Component c, Graphics g, int x, int y) {
      if (!JTattooUtilities.isLeftToRight(c)) {
        x += 3;
      }
      Graphics2D g2D = (Graphics2D) g;
      AbstractButton b = (AbstractButton) c;
      ButtonModel model = b.getModel();
      Color frameColor = AbstractLookAndFeel.getFrameColor();
      Object savedRederingHint = g2D
          .getRenderingHint(RenderingHints.KEY_ANTIALIASING);
      Shape savedClip = g.getClip();
      g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
          RenderingHints.VALUE_ANTIALIAS_ON);
      g2D.setColor(AbstractLookAndFeel.getTheme().getControlShadowColor());
      g2D.drawOval(x + 1, y + 1, WIDTH - 1, HEIGHT - 1);
      Area clipArea = new Area(new Ellipse2D.Double(x, y, WIDTH, HEIGHT));
      clipArea.intersect(new Area(savedClip));
      g2D.setClip(clipArea);
      if (b.isEnabled()) {
        if (b.isRolloverEnabled() && model.isRollover()) {
          JTattooUtilities.fillHorGradient(g, AbstractLookAndFeel
              .getTheme().getRolloverColors(), x + 1, y + 1,
              WIDTH - 2, HEIGHT - 2);
          frameColor = ColorHelper.brighter(frameColor, 30);
        } else {
          JTattooUtilities.fillHorGradient(g, AbstractLookAndFeel
              .getTheme().getDefaultColors(), x + 1, y + 1,
              WIDTH - 2, HEIGHT - 2);
        }

      } else {
        JTattooUtilities.fillHorGradient(g, AbstractLookAndFeel
            .getTheme().getDisabledColors(), x + 1, y + 1,
            WIDTH - 2, HEIGHT - 2);
        frameColor = ColorHelper.brighter(frameColor, 40);
      }
      g2D.setClip(savedClip);
      g2D.setColor(frameColor);
      g2D.drawOval(x, y, WIDTH - 1, HEIGHT - 1);
      if (model.isSelected()) {
        int xi = x + ((WIDTH - radioIcon.getIconWidth()) / 2);
        int yi = y + ((HEIGHT - radioIcon.getIconHeight()) / 2);
        if (!model.isEnabled()) {
          g.setColor(Color.gray);
          g.fillOval(x + (WIDTH / 2) - 2, y + (HEIGHT / 2) - 2, 5, 5);
        } else {
          int gv = 0;
          if (model.isRollover()) {
            gv = ColorHelper.getGrayValue(AbstractLookAndFeel
                .getTheme().getRolloverColorDark());
          } else {
            gv = ColorHelper.getGrayValue(AbstractLookAndFeel
                .getTheme().getControlColorDark());
          }
          if (gv > 128) {
            g.setColor(Color.black);
            g.fillOval(x + (WIDTH / 2) - 2, y + (HEIGHT / 2) - 2,
                5, 5);
          } else {
            radioIcon.paintIcon(c, g, xi, yi);
          }
        }
      }
      g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
          savedRederingHint);
    }

    public int getIconWidth() {
      return WIDTH + 4;
    }

    public int getIconHeight() {
      return HEIGHT;
    }
  }
}